What Is the Lumbar Spine?
The lumbar spine is the lower section of the spinal column between the thoracic spine and sacrum. It contains five movable vertebrae that support the trunk, allow bending and rotation, and help protect nerves traveling toward the pelvis and legs. Its joints, discs, muscles, and ligaments work together during movement.
Quick Facts About Lumbar Spine
Category
Spinal region
Used for
Trunk support and lower-back movement
Common confusion
The lumbar spine is not the entire lower back
Also called
Lower Back Spine, Lumbar region
Often discussed with
Back Pain Treatment
Key Takeaways About Lumbar Spine
- The lumbar region sits between the rib-bearing spine and the sacrum.
- Its discs and joints help manage load during standing and movement.
- Low back pain does not always come from the lumbar spine.
How Lumbar Spine Works
The lumbar spine works as a load-bearing section of the spinal column. Its vertebrae form joints that guide bending and turning, while discs help distribute pressure between neighboring bones. Ligaments and muscles add support during sitting, walking, lifting, and other daily movements.
Related glossary terms: Thoracic Spine, Sacroiliac Joint, Nerve Root.
Clinicians assess this region through a health history and physical examination. They may observe posture, walking, spinal movement, muscle control, and signs linked to nearby nerves. The nerve root and sacroiliac joint can also influence symptoms felt near the lower back, buttocks, or leg. These findings help distinguish a lumbar movement problem from conditions involving nearby tissues.
From the Arrowhead Clinic Chiropractor Hinesville team
When we assess the lumbar spine during Back Pain Treatment, we review movement, posture, muscle control, and symptom patterns together. Our team also considers nearby areas, such as the pelvis and thoracic spine, because lower-back symptoms can involve more than one region.
Lumbar Spine in Practice: A Real-World Example
A person may feel lower-back discomfort after repeated bending at work. During Back Pain Treatment, the lumbar spine is considered alongside hip movement, pelvic position, and nearby muscle tension to identify useful treatment targets.
Related Services
Related Terms
Thoracic Spine
The thoracic spine is the middle section of the vertebral column, located between the cervical spine…
Sacroiliac Joint
Sacroiliac Joint is the connection between the sacrum at the base of the spine and the…
Nerve Root
A nerve root is the segment of a spinal nerve that branches from the spinal cord…
Neutral Spine
Neutral Spine is a balanced position in which the spine keeps its natural curves while the…
Arrowhead Clinic Chiropractor Hinesville
Have Questions About Lumbar Spine?
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